Messages in this thread | | | Date | Tue, 5 Aug 2014 08:08:47 -0700 | Subject | Re: [PATCH v5 3/3] arm64: Add seccomp support | From | Kees Cook <> |
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On Fri, Jul 25, 2014 at 2:37 AM, AKASHI Takahiro <takahiro.akashi@linaro.org> wrote: > I found a bug in my current patch (v5). When 32-bit tracer skips a system call, > we should not update syscallno from x8 since syscallno is re-written directly > via ptrace(PTRACE_SET_SYSCALL).
Ah, yes. Will aarch64 have a PTRACE_SET_SYSCALL option, or is this strictly a 32-bit vs 64-bit issue?
> I'm sure that my next version should work with 32/64-bit tracers on 64-bit > kernel.
Do you have a git tree uploaded anywhere? I'd love to follow this more closely. When do you expect a v6?
Thanks!
-Kees
-- Kees Cook Chrome OS Security
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